Home / 2,289.77-3,159.94-1,295.19

Finding the Fourth Proportional to 2,289.77, 3,159.94 and 1,295.19

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Solution

The fourth proportional to 2,289.77, 3,159.94 and 1,295.19 is: 1,787.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.77 : 3,159.94 = 1,295.19 : x
  2. Step 2: Convert to fraction form
    2,289.77/3,159.94 = 1,295.19/x
  3. Step 3: Cross multiply
    2,289.77x = 3,159.94 × 1,295.19
  4. Step 4: Simplify right side
    2,289.77x = 4,092,716.21
  5. Step 5: Solve for x
    x = 4,092,716.21/2,289.77
  6. Step 6: Final answer
    x = 1,787.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.